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Catalyst for sec-butyl acetate hydrogenation reaction, and preparation method and application thereof

A technology of sec-butyl acetate and hydrogenation reaction, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, preparation of hydroxyl compounds, etc., can solve problems such as poor low temperature performance of catalysts, and achieve thermal stability High performance, avoid activity reduction, high anti-sintering effect

Pending Publication Date: 2020-04-21
SHANDONG JINGBO PETROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the catalyst used in the process has poor low-temperature performance

Method used

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  • Catalyst for sec-butyl acetate hydrogenation reaction, and preparation method and application thereof
  • Catalyst for sec-butyl acetate hydrogenation reaction, and preparation method and application thereof
  • Catalyst for sec-butyl acetate hydrogenation reaction, and preparation method and application thereof

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preparation example Construction

[0026] The invention provides a kind of preparation method of the catalyst that is used for sec-butyl acetate hydrogenation reaction, comprises the following steps:

[0027] Will Al 2 o 3 Add the metal salt solution and the precipitating agent solution to the suspension of the precursor, precipitate reaction, age, and obtain precipitation; the Al 2 o 3 The precursors are selected from dry aluminum hydroxide, pseudoboehmite and γ-Al 2 o 3 One or more of the powders; the metal salt solution includes soluble copper salts and soluble additives; the soluble additives are selected from one of soluble zinc salts, soluble magnesium salts, soluble calcium salts and soluble barium salts or more; the precipitant solution includes sodium carbonate, sodium hydroxide and water with a mass ratio of 3.0 to 8.0:1.0:3.5 to 10.0;

[0028] The precipitate is filtered, washed with water, dried and roasted to obtain a catalyst for the hydrogenation reaction of sec-butyl acetate;

[0029] Al i...

Embodiment 1

[0044] This embodiment provides a CuO-ZnO-Al 2 o 3 Catalyst, comprises the steps:

[0045] Weigh 459g of aluminum hydroxide dry glue, add 5L of water to prepare aluminum hydroxide dry glue suspension, stir at 70°C and make it uniformly dispersed. Weigh 608g copper nitrate and 1462g parts by weight of zinc nitrate, mix with 12.5L water and stir evenly. Weigh 16.33kg parts by weight of sodium carbonate and 3.08kg parts by weight of sodium hydroxide, mix them with 12.5L of water and stir evenly. Under the condition of stirring, nitrate solution and alkali solution are simultaneously added to the aluminum hydroxide dry gel suspension, and the whole process is controlled for 4 hours, and the pH is controlled at 7-8. After the precipitation reaction is completed, keep stirring at 80°C for 5 hours to carry out the aging process; the final precipitate is filtered, washed, dried at 100°C for 10 hours, roasted at 500°C for 4 hours, and shaped to obtain the hydrogenation production of...

Embodiment 2

[0047] This embodiment provides a CuO-MgO-Al 2 o 3 Catalyst, comprises the steps:

[0048] Weigh 345g of aluminum hydroxide dry glue, add 5L of water to prepare aluminum hydroxide dry glue suspension, stir at 70°C and make it uniformly dispersed. Weigh 608g of copper nitrate and 3176g of magnesium nitrate, mix them with 12.5L of water and stir evenly. Weigh 16.33kg parts by weight of sodium carbonate and 3.08kg parts by weight of sodium hydroxide, mix them with 12.5L of water and stir evenly. Under the condition of stirring, nitrate solution and alkali solution are simultaneously added to the aluminum hydroxide dry gel suspension, and the whole process is controlled for 4 hours, and the pH is controlled at 7-8. After the precipitation reaction is completed, keep stirring at 80°C for 5 hours to carry out the aging process; the final precipitate is filtered, washed, dried at 100°C for 10 hours, roasted at 500°C for 4 hours, and shaped to obtain the hydrogenation production of...

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Abstract

The invention provides a catalyst for a sec-butyl acetate hydrogenation reaction, and a preparation method and an application thereof. The preparation method comprises the following steps: adding a metal salt solution and a precipitant solution into a suspension of an Al2O3 precursor, performing a precipitation reaction, and aging to obtain a precipitate, wherein the Al2O3 precursor is selected from one or more of aluminum hydroxide dry glue, pseudo-boehmite and gamma-Al2O3 powder, the metal salt solution comprises a soluble copper salt and a soluble auxiliary agent, the soluble additive is selected from one or more of a soluble zinc salt, a soluble magnesium salt, a soluble calcium salt and a soluble barium salt, and the precipitator solution comprises sodium carbonate, sodium hydroxide and water in a mass ratio of (3.0-8.0):1.0:(3.5-10.0); and filtering, washing, drying and roasting the precipitate to obtain the catalyst. The catalyst comprises 5-60 wt% of Al2O3, 10-30 wt% of CuO and30-70 wt% of auxiliary oxide. The catalyst has high selectivity, good low-temperature reaction performance and sintering resistance.

Description

technical field [0001] The invention belongs to the technical field of catalyst preparation, and in particular relates to a catalyst for the hydrogenation reaction of sec-butyl acetate, a preparation method and application thereof. Background technique [0002] Sec-butanol is an important organic chemical raw material. It is a raw material for the synthesis of methyl ethyl ketone (MEK). Industrial detergents, etc. It can also be used in the manufacture of plasticizers, oil extractants, wetting agents, fragrances, etc. Because sec-butanol can increase the processability and ductility of paint, it can be used as a cosolvent for nitro spray paint and nitro paint thinner. [0003] The traditional preparation methods of sec-butanol mainly include n-butene hydration method, including sulfuric acid indirect hydration method, resin catalyzed direct hydration method and heteropolyacid catalyzed direct hydration method. These methods generally have problems such as serious equipmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/80B01J23/72B01J23/78C07C29/149C07C31/08C07C31/12
CPCB01J23/80B01J23/72B01J23/78C07C29/149B01J2523/00C07C31/08C07C31/12B01J2523/17B01J2523/27B01J2523/31B01J2523/22B01J2523/23B01J2523/25
Inventor 侯珂珂谭伟崔勇牟庆平王耀伟栾波
Owner SHANDONG JINGBO PETROCHEM
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